Home / 5,383.03-7,430.22-3,145.39

Finding the Fourth Proportional to 5,383.03, 7,430.22 and 3,145.39

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Solution

The fourth proportional to 5,383.03, 7,430.22 and 3,145.39 is: 4,341.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,383.03 : 7,430.22 = 3,145.39 : x
  2. Step 2: Convert to fraction form
    5,383.03/7,430.22 = 3,145.39/x
  3. Step 3: Cross multiply
    5,383.03x = 7,430.22 × 3,145.39
  4. Step 4: Simplify right side
    5,383.03x = 23,370,939.69
  5. Step 5: Solve for x
    x = 23,370,939.69/5,383.03
  6. Step 6: Final answer
    x = 4,341.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.